Publication 28 - Postal Addressing Standards > 2 Postal Addressing Standards > 24 Rural Route Addresses > 245 Additional Designations
There should be no additional designations, such as town or street names, on the Delivery Address Line of rural route addresses. Because street names used together with route and box numbers can create potential matching difficulty, mailers are encouraged to use only one style of addressing. If secondary name information is used, however, place it above the Delivery Address Line.